Method and installation for setting in adsorbed state on a porous support active compounds contained in a product
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United States of America Patent
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Mar 23, 2004
Grant Date -
N/A
app pub date -
Mar 22, 2002
filing date -
Sep 27, 1999
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Expired
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Abstract
The invention concerns a method and an installation for setting in adsorbed state, on a porous support, compounds contained in a product comprising a first step which consists in extracting the compounds by contacting the product with at least a solvent at supercritical pressure to obtain a mixture of extracts and solvent. The method is characterized in that it comprises a second step which consists in eliminating the water contained in the mixture of extracts and solvent, adjusting the temperature and pressure conditions so as to obtain, a first phase consisting of solvent in gaseous state and a second phase consisting of a mixture of liquids formed of solvent and extracts of the products; causing said two phases to trickle through a porous support adapted to adsorb the extracts; vaporizing the solvent contained in the second phase.
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